[Hellmouth]

This is a nice trick also. I noticed the ref to Abdul. I was going to try to look it up later tonight so you have saved me a lot of hassle. In principle they are mathematically the same. Just manipulated to look different.

I suspect that King wanted to show abdul's trick without blatently ripping him off. He also credits Abdul elsewhere in the book so I suspect that the method may have been origionally learned there.

Thanks
Greg